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in Technique[技术] by (71.8m points)

如何通过对象映射获取值?

const TEST = {
    A:'a',
    B:'b',
    C:'c'
};
let data = {A:1,B:2};

有什么简便的方式获取得到最终的值:a1b2 ?目前想到的方式是两次遍历,应该有更简单的方法。


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1 Answer

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by (71.8m points)

一个思路

const TEST = {
    A:'a',
    B:'b',
    C:'c'
};
let data = {A:1,B:2};

Object.keys(data).reduce((a,b) => TEST[a]?`${TEST[a]}${data[a]}${TEST[b]}${data[b]}`:`${a}${TEST[b]}${data[b]}`,'')

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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